[4.1] 21ef123 Fix minor leak spotted by Coverity Scan

[Lasse Karstensen]

commit 21ef1235cbdc6c8614483bb138d22b6338f9f79f
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Thu Mar 31 08:00:18 2016 +0200

    Fix minor leak spotted by Coverity Scan

diff --git a/bin/varnishtest/vtc_barrier.c b/bin/varnishtest/vtc_barrier.c
index 47ac4dc..ecd3ba5 100644
--- a/bin/varnishtest/vtc_barrier.c
+++ b/bin/varnishtest/vtc_barrier.c
@@ -223,6 +223,7 @@ barrier_sock_thread(void *priv)
 	macro_undef(vl, b->name, "port");
 	macro_undef(vl, b->name, "sock");
 	AZ(close(sock));
+	free(conns);
 
 	return (NULL);
 }